/*
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 * and open the template in the editor.
 */
package pack_servlets;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import pack_gestionarCarrito.Carrito;
import pack_gestionarCarrito.Compra;
import pack_gestionarProducto.ActualizarBD;

/**
 *
 * @author Fernando
 */
@WebServlet(name = "CancelaCompra", urlPatterns = {"/CancelaCompra"})
public class CancelaCompra extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
try {
            ActualizarBD update = new ActualizarBD();
            HttpSession AplicationSession = request.getSession(true);
            Carrito carro;
            if (AplicationSession.getAttribute("carro") != null) {
                carro = (Carrito) AplicationSession.getAttribute("carro");
                for (Compra compra : carro.getLista()) {
                    int sum = update.consultCantidadProductoBD(compra.getId_producto()) + compra.getCantidad();
                    update.actualizar(sum, compra.getId_producto());
                }
                AplicationSession.setAttribute("carro", null);
                //AplicationSession.setAttribute("objListaProducto", null); desabilitado ya que se usa en mi_carrito.jsp
                AplicationSession.setAttribute("TotalCompra", null);
                AplicationSession.setAttribute("contadorProducto", null);
            }
            response.sendRedirect("index.jsp");
        } finally {
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
